Question

Scrieti numarul 81 ca putere cu paza
3 ; 1/3 ;9 ; 1/9;

Scrieti numarul 16 ca putere cu baza
2 ; 1/2 ;4 ; 1/4;

Adevarat sau Fals?

Answer 1

81=$3^{4}$
$81= ( \frac{1}{3}) ^{-4}$
$81= 9^{2}$
$81= ( \frac{1}{9}) ^{-2}$
$16= 2^{4}$
$16= ( \frac{1}{2}) ^{-4}$
$16= 4^{2}$
$16= ( \frac{1}{4} )^{-2}$